Position Overview

We are seeking a highly skilled Integrated Thermal Field & Development Modeler to lead the connection between subsurface heat flow systems and full field development design for geothermal energy production. This role is responsible for translating geoscience and thermal models into field development strategies, including well (s) model, multi-well pad configuration, and system-wide thermal energy extraction optimization. The candidate will bridge subsurface heat extraction behavior with surface power plant operations to maximize long-term thermal output and field efficiency.

Responsibilities

1. Thermal System Modeling & Simulation

• Develop and maintain geoscience and thermal models representing subsurface heat distribution and rock properties.
• Convert thermal models into predictive heat extraction and performance models.
• Simulate heat long term heat extraction behavior, recharge scenarios.
• Continuously refine models using temperature log, laboratory test, and well production data.

2. Field Development Design

• Design geothermal field development concepts including:
  • Well count optimization based on heat recovery potential
  • Well spacing and thermal interference management
  • Optimal well depth and targeting of high-potential resource zones
  • Multi-well pad architecture (e.g., 4-10+ wells per pad)
• Develop staged field expansion plans aligned with power delivery targets.
• Optimize long-term thermal sustainability and field longevity.

3. Well & Subsurface Thermal Optimization

• Translate thermal models into expected per-well thermal output profiles.
• Define expected temperature behavior across well clusters.
• Optimize well placement to maximize heat flow efficiency and minimize thermal interference.
• Integrate well and logging data to update thermal performance predictions in real time.

4. Surface Power Plant Integration

• Work closely with surface engineering and power plant teams to align:
  • Thermal energy delivery rates
  • Working fluid circulation strategies
  • Fluid rate strategies for thermal sustainability and field management
• Ensure subsurface heat extraction strategy is fully synchronized with power generation requirements.

5. Real-Time Data Integration & Learning Loop

• Incorporate well data, temperature logs, and early flow/production measurements into thermal models.
• Continuously update field development assumptions during development campaigns.
• Build iterative feedback loops between:
  • Well(s) execution
  • Thermal model updates
  • Well performance evaluation
  • Field expansion planning

6. Cross-Functional Technical Integration

• Serve as the technical bridge between geoscience, well engineering, and power plant operations teams.
• Support decision-making on field scale-up timing, well sequencing, and pad deployment strategy.
• Provide clear, model-driven insights for leadership on field performance and expansion scenarios.

Qualifications

• PhD (preferred) or Master’s degree in Geothermal Engineering, Petroleum Engineering, Geoscience, Mechanical Engineering, Physics, or a related technical discipline
• Strong background in subsurface modeling and numerical simulation
• Experience with heat transfer, geothermal systems, or subsurface energy systems
• Familiarity with thermal modeling, reservoir analogs, or coupled geomechanics/thermal systems
• Experience integrating subsurface models with surface energy systems (power plants preferred)
• Ability to work in fast-moving, data-evolving field development environments

Additional Requirements:

• US work authorization
• Experience and comfort working in hybrid remote/in-person workplace
• Location: Houston, TX

About XGS Energy

XGS Energy is a geothermal energy company with offices in Palo Alto, California, Houston, Texas, and Austin, Texas. The company’s proprietary heat harvesting technology and closed loop well architecture enable global deployment of terawatt scale geothermal heat and power. XGS is backed by leading energy developers, operators, consumers, and financial investors globally, including Constellation Technology Ventures, Anzu Partners, Valo Ventures, VoLo Earth Ventures, BlueScopeX, Thin Line Capital, and Helmerich & Payne. Learn more at www.xgsenergy.com.

To Apply

Please email [email protected], noting the role you are interested in and including your resume or CV and a brief paragraph covering your qualifications and why you are interested in the role. Please include “Thermal Systems Engineer” in the subject line.

Position Overview:

We are seeking a Strategy Associate who will partner with XGS Energy’s leadership team to evaluate growth opportunities, shape strategic priorities, and drive cross-functional initiatives from concept through execution. This role combines rigorous analysis (market research, technoeconomic and financial modeling, KPI tracking) with clear, compelling communication to support decisions across investors, customers, partners, and public-sector stakeholders. The ideal candidate is highly analytical, proactive, and energized by building in a fast-paced environment while advancing scalable, round-the-clock clean energy solutions.

Responsibilities

Responsibilities will be aligned to candidate’s experience and may include:
• Strategic Planning and Execution: Collaborate with Management Team to develop and execute initiatives that unlock growth, margin, or operational efficiencies.
• Financial Modeling: Perform technoeconomic analysis, model business plans and project financial structures, refine and track performance metrics.
• Market Evaluation: Prepare market and competitive landscape research.
• Stakeholder Engagement: Develop and strengthen strategic relationships with key stakeholders across the renewable energy ecosystem, e.g., craft and influence policy change, coordinate with trade groups and NGOs, interface with investors.

Required Qualifications

• 1+ years experience in investment banking, management consulting, corporate or public sector strategy, or equivalent, with strong preference for experience in energy industry
• Bachelor’s degree in relevant field, e.g., economics, business, management, science or engineering
• Excellent analytical and problem-solving skills.
• Excellent communication, collaboration, and interpersonal skills.
• Exceptional ability to drive initiatives forward, adapt to obstacles, and deliver measurable outcomes in a fast-paced environment.
• Passion for and deep commitment to advancing energy solutions to address global challenges.

Preferred Qualification

• Familiarity with emerging trends in energy project development and finance.

Additional Requirements:

• US work authorization.
• Experience and comfort working in a hybrid remote/in-person model.
• Willingness to travel as needed.
• Preferred location: Seattle, WA; Austin TX; Houston TX

About XGS Energy

XGS Energy is a geothermal energy company with offices in Palo Alto, California, and Houston, Texas. The company’s proprietary heat-harvesting technology and closed-loop well architecture enable global deployment of terawatt-scale geothermal heat and power. XGS is backed by leading energy developers, operators, consumers, and financial investors globally, including Constellation Technology Ventures, Anzu Partners, Valo Ventures, VoLo Earth Ventures, BlueScopeX, Thin Line Capital, and Helmerich & Payne. Learn more at www.xgsenergy.com.

To Apply:

Please contact [email protected], noting the role you are interested in and including your resume or CV and a brief paragraph covering your qualifications and why you are interested in the role. Please include “Strategy Associate” in the subject line.

Position Overview:

XGS Energy is seeking a mid-career Operational Geologist to support drilling and subsurface characterization activities for geothermal development projects. The role will focus on real-time geological interpretation, wellsite operations, and integration of geological, petrophysical, and drilling data to support safe and efficient well execution.

Responsibilities

Wellsite Geological Operations

• • Provide real-time geological supervision during drilling operations, ensuring accurate formation identification and stratigraphic interpretation.
  • Monitor and interpret cuttings, drilling parameters, and mud logging data to evaluate formation changes and subsurface conditions.
  • Maintain close collaboration with drilling engineers, mud loggers, and directional drilling teams to support operational decision-making.
  • Identify and document lithological transitions, fractures, alteration zones, and structural features relevant to geothermal resource characterization.

Mud Logging and Geological Data Acquisition

• • Oversee mud logging services and ensure high-quality geological data acquisition.
  • Interpret cuttings descriptions, and drilling parameters to support subsurface interpretation.
  • Ensure proper sampling procedures and quality control for cuttings and geological samples.

Subsurface Characterization

• • Integrate wellsite observations with geophysical, geological, and petrophysical data to refine subsurface models.
  • Assist with formation evaluation and petrophysical interpretation where applicable.
  • Support core acquisition programs, sample preservation, and preliminary geological descriptions.

Reporting and Data Integration

• Prepare daily geological reports and end-of-well summaries.
• Document key geological observations including stratigraphy, structural features, fracture density, and alteration patterns.
• Contribute to post-well geological interpretation and subsurface model updates.
• Safety and Operational Excellence
• Maintain strong adherence to health, safety, and environmental standards during wellsite operations.
• Support operational planning by providing geological input for well prognosis, coring programs, and logging runs.

Required Qualifications

• B.S. or M.S. in Geology, Geological Engineering, or related Earth Sciences field
• 10–15 years of operational geology experience
• Extensive experience in wellsite geology and mud logging interpretation
• Proven experience supporting drilling operations in high-temperature wells, geothermal wells, or deep/high-temperature hydrocarbon environments
• Strong understanding of drilling operations and formation evaluation
• Strong operational awareness and decision-making
• Ability to work effectively in wellsite and remote field environments
• Strong integration skills across geology, drilling, and reservoir disciplines
• Clear and concise technical communication and reporting

Preferred Qualification

• Experience working on geothermal drilling programs
• Familiarity with high-temperature drilling environments
• Petrophysical interpretation experience (logs, formation evaluation)
• Experience with core description and geological sample management
• Familiarity with digital wellsite data systems and geological reporting tools

Additional Requirements:

• US work authorization.
• Experience and comfort working in a hybrid remote/in-person model.
• Willingness to travel, expect extensive time in field during drilling operations.
• Preferred location: San Francisco, CA; Houston, TX; or Remote.

About XGS Energy

XGS Energy is a geothermal energy company with offices in Palo Alto, California, and Houston, Texas. The company’s proprietary heat-harvesting technology and closed-loop well architecture enable global deployment of terawatt-scale geothermal heat and power. XGS is backed by leading energy developers, operators, consumers, and financial investors globally, including Constellation Technology Ventures, Anzu Partners, Valo Ventures, VoLo Earth Ventures, BlueScopeX, Thin Line Capital, and Helmerich & Payne. Learn more at www.xgsenergy.com.

To Apply:

Please contact [email protected], noting the role you are interested in and including your resume or CV and a brief paragraph covering your qualifications and why you are interested in the role. Please include “Operational Geologist” in the subject line.

Responsibilities

• Project Leadership: Provide strong leadership and direction to the engineering project team, fostering a collaborative and results-oriented work environment.
• Strategic Planning & Execution: Develop comprehensive project plans that define scope, schedule, budget, resources, and milestones. Utilize project management methodologies to effectively track progress and ensure project deliverables are met.
• Technical Expertise: Maintain a solid understanding of engineering principles and project management best practices. While not an expert in every engineering discipline, you should be able to effectively communicate with and guide a team of specialists.
• Team Management: Lead, motivate, and mentor a team of engineers, technicians, and other specialists from various disciplines. Foster open communication and collaboration to ensure everyone is aligned with project goals.
• Budget Management: Own the project budget, proactively identifying cost-saving opportunities and managing resources efficiently. Negotiate with vendors and suppliers to secure the best value.
• Risk Management: Proactively identify and mitigate potential risks that could impact the project schedule, budget, or quality. Develop contingency plans to address unforeseen circumstances and ensure project success.
• Vendor Focus: Build and maintain strong relationships with vendorss, keeping them informed of progress, managing expectations, and addressing concerns throughout the project lifecycle.
• Communication & Reporting: Communicate project status, challenges, and risks clearly and concisely to stakeholders, including clients, senior management, and team members. Prepare reports to keep everyone informed.
• Quality Assurance: Ensure the project adheres to all quality standards and specifications. Work with quality control teams to identify and address any quality issues.

Qualification

• Bachelor’s degree in Engineering or a related field (e.g., Project Management) required.
• Minimum 5+ years of experience in engineering project management.
• Proven track record of successfully leading and delivering complex engineering projects on time, within budget, and to client satisfaction.
• Strong understanding of project management methodologies (e.g., Agile, Waterfall).
• Excellent leadership, communication, interpersonal, and negotiation skills.
• Proficient in project management software tools (e.g., MS Project, Primavera).
• Ability to multi-task, prioritize effectively, and manage time efficiently.
• Ability to work independently, manage multiple projects simultaneously, and make critical decisions under pressure.

Preferred Qualification

• Proven ability to manage and mitigate project risks.
• Strong understanding of engineering principles relevant to our industry. Experience working with cross-functional teams.

To apply, please contact [email protected], noting the role you are interested in and including your resume or CV.

Responsibilities

• Drilling Expertise: Plan and design geothermal drilling programs, considering geological formations, resource characteristics, wellbore trajectory, and environmental regulations.
• Technical Prowess: Utilize drilling engineering software to optimize drilling parameters, mud programs, and casing design for efficient wellbore construction and maximizing geothermal well productivity.
• Collaboration is Key: Work closely with geologists, reservoir engineers, and drilling crews to ensure the drilling program aligns with project requirements, safety standards, and cost-effectiveness.
• Risk Management: Identify and mitigate potential drilling risks by incorporating best practices in wellbore design, drilling operations, and contingency planning.
• Real-Time Problem Solving: Monitor and analyze drilling data in real-time, troubleshoot drilling challenges, and recommend solutions to ensure successful wellbore completion.
• Communication & Reporting: Prepare clear and concise drilling reports, presentations, and wellbore completion plans to communicate progress and recommendations to stakeholders.
• Staying Sharp: Maintain a strong understanding of geothermal drilling technologies, directional drilling techniques, and advancements in the geothermal industry.

Qualification

• Bachelor’s degree in Petroleum Engineering, Mechanical Engineering, or a related field.
• Minimum 5 years of experience in geothermal drilling engineering or a similar field (e.g., oil & gas drilling engineering).
• Strong understanding of geothermal wellbore design principles, drilling mechanics, and drilling technologies.
• Proficient in drilling engineering software and other relevant design tools.
• Excellent analytical and problem-solving skills with a focus on detail and accuracy.
• Effective communication, collaboration, and interpersonal skills to work effectively with diverse teams.
• Ability to work independently and make critical decisions in a fast-paced environment.

Preferred Qualification

• Experience with geothermal drilling practices and specific drilling techniques used in geothermal applications.
• Knowledge of geothermal reservoir engineering concepts and well completion strategies.
• Familiarity with relevant drilling standards and regulations for geothermal projects.
• Experience working with drilling contractors and service companies.
• Experience managing and optimizing drilling budgets.

To apply, please contact [email protected], noting the role you are interested in and including your resume or CV.

Responsibilities

• Leadership & Management: Provide strong leadership and direction to the well construction team, fostering a collaborative and safety-focused work environment.
• Project Management Expertise: Manage all aspects of geothermal well construction projects, including planning, scheduling, resource allocation, budgeting, and risk mitigation.
• Technical Proficiency: Maintain a strong understanding of geothermal wellbore construction principles, drilling technologies, and well completion strategies.
• Collaboration is Key: Work closely with geothermal engineers, geologists, drilling engineers, cementing specialists, and other stakeholders to ensure well construction aligns with project requirements, safety standards, and environmental regulations.
• Communication & Coordination: Effectively communicate well construction plans, progress updates, and challenges to internal and external stakeholders.
• Risk Management: Proactively identify and mitigate potential risks associated with well construction activities, implementing contingency plans to ensure project success and wellbore integrity.
• Performance Optimization: Continuously evaluate well construction operations for efficiency and effectiveness, implementing improvements to optimize wellbore development timelines and costs.
• Staying Sharp: Maintain a strong understanding of industry best practices, advancements in geothermal well construction technologies, and relevant regulations.

Qualification

• Bachelor’s degree in Petroleum Engineering, Mechanical Engineering, or a related field (preferred), or a minimum of 10 years of relevant experience in geothermal well construction operations.
• Minimum 5-7 years of experience in managing and leading geothermal well construction projects.
• Strong understanding of geothermal wellbore design, drilling procedures, well completion techniques, and wellbore integrity principles.
• Proven track record of delivering projects on time, within budget, and to safety standards.
• Excellent leadership, communication, collaboration, and interpersonal skills.
• Ability to work independently, manage multiple priorities, and make critical decisions in a fast-paced environment.

Preferred Qualification

• Experience working with drilling technologies used in geothermal well construction.
• Knowledge of geothermal reservoir engineering concepts and well testing procedures.
• Experience collaborating with regulatory agencies on geothermal well permitting processes.
• Proficiency in project management methodologies and construction management software.
• Proven ability to manage and motivate diverse teams in a physically demanding environment.

To apply, please contact [email protected], noting the role you are interested in and including your resume or CV.